Terrible service at Nedbank

I'm having the most terrible service from Nedbank. They are taking R8.50 off my account almost every day, multiple times a day, for months now. Examples of what they deduct: BDS Capitec ***0 INS Funds BDS ABSA ***3 INS Funds MDS M/C IN ***3 INS Funds BDS FNB IN ***3 I've spoken to various agents at Nedbank now and all of them have a different explanation. The one agent said it's an insurance I have with ABSA. I don't have any insurance and I'm unemployed. The other agent said it's because I'm trying to swipe my card and there are no funds available. Another agent said it's because of failed debit orders. Bare in mind I only have one debit order and I have arrangements with them on which date to deduct the money. And I definitely do not swipe my card all the times that it took that R8.50. it's ridiculous really. Every time my husband's deposits money into my account it deducts money even if my account had money in for example R150 and my balance was R80 it will show my Availabil balance is for example R120. No one can tell me why the agents say no it doesn't show like that on their system. Why would I phone the bank with a problem if I'm lying about it. On the point of closing my account with Nedbank. Will never recommend them to anyone.